Watch S3, EP21: The Secret of the Golden Seaweed with Fubo
When a castaway whom Marine Boy rescues tells him of a fabulous patch of golden seaweed, they set off together to find the fantastic plant.
When a castaway whom Marine Boy rescues tells him of a fabulous patch of golden seaweed, they set off together to find the fantastic plant.
How to watch
More episodes
Marine Boy
S3, EP21 "The Secret of the Golden Seaweed"When a castaway whom Marine Boy rescues tells him of a fabulous patch of golden seaweed, they set off together to find the fantastic plant.
Marine Boy
S3, EP22 "The Fantastic Flash"Marine Boy is blinded temporarily by a flash of light, which a gang of criminals is using to escape detection of their crimes.
Marine Boy
S3, EP23 "The Stormy Brainstorm"The Brainstorm, a super electronic computer, suddenly becomes so powerful that it can control not only other machines, but human minds as well.
Marine Boy
S3, EP24 "The Gill Men"Piper is captured by the fiendish Dr. Diablo; Diablo plans to save mankind from a future flood by installing gills in their bodies so they can live underwater.
Marine Boy
S3, EP20 "The Desperate Search"Professor Ike Iconoclast has perfected a secret formula for a new secret weapon, but when it is about to be stolen from him, he hides each half of the formula in a different place.
More anime shows
See allBakugan
When Bakugan brawls are banned and driven underground, Dan Kouzo and his friends decide to form their own clan and fight for what they believe is right.
Speed Racer
Teenager Go Mifune aspires to be the world's best race-car champion with the help of his friends, family and his father's high-tech race-car, the Mach 5.
Marine Boy
"Marine Boy" is produced in Japan but is intended for US audiences; it is one of the first color cartoons to come from Japan, soon to be sharing syndicated screen space with the likes of "Kimba the White Lion" and "Speed Racer."
Yu-Gi-Oh! GO RUSH!!
Twins Yuhi and Yuamu Ohdo believe there's alien life beyond the stars, even though their attempts to prove it have only ended in failure; their hard work and dedication are about to pay off when an extraterrestrial finally arrives on Earth!